Tirigu ndi mbewu yofunika kwambiri padziko lonse lapansi, ndipo anthu opitilira 40 pa 100 aliwonse padziko lapansi amadya tirigu monga chakudya chofunikira kwambiri.Mlembiyu posachedwapa wakhala ndi chidwi ndi mankhwala ophera udzu m’minda ya tirigu, ndipo motsatizana anayambitsa zida zankhondo zosiyanasiyana za m’munda wa tirigu.Ngakhale zida zatsopano monga pinoxaden zimatuluka nthawi zonse, poganizira kuti kuwongolera namsongole m'minda ya tirigu ndi chandamale chimodzi cha othandizira atsopano kumafuna mankhwala okhala ndi njira yapadera yochitirapo kanthu & sizovuta kutulutsa kukana kusakanikirana kuti akwaniritse zotsatira zake. kuchotseratu kawiri , kuchepetsa mtengo wa ntchito m'munda, ndi zina zotero, nkhope zina zakale zikadali mphamvu yaikulu yopalira m'minda ya tirigu, ndikupitirizabe kugwira ntchito yosasinthika.Zomwe zafotokozedwa m'munsimu ndizomwe zimawononga namsongole m'minda ya tirigu, zomwe zimagwiritsidwa ntchito kwambiri, zosagwira kutentha kwambiri, zotetezeka kwambiri ku tirigu, komanso zotsika mtengo.Mankhwalawa ndi Florasulam.

Florasulam ndi triazole pyrimidine yachisanu yopangidwa bwino ndi Dow AgroSciences pakati pa zaka za m'ma 1990 pambuyo pa sulfentrazone, sulfentrazone, dicoxsulam ndi sulfentrazone.Sulfonamide herbicides.Nkhaniyi idanenedwa mu 1998-1999, yomwe imagwiritsidwa ntchito makamaka poyang'anira namsongole wamasamba ambiri m'minda ya tirigu.Kupewa zotsatira.Kuyambira pomwe idayikidwa pamsika mu 2000, yakhala imodzi mwamalo ogulitsa a Dow AgroSciences, ndipo kukula kwakula kwakhala bwino mzaka zaposachedwa.

Njira Zochita

Florasulam ndi ya gulu la triazolopyrimidine sulfonamide la herbicides ndipo ndi inhibitor wamba wa acetolactate synthase (ALS).Poletsa acetolactate synthase muzomera, imalepheretsa biosynthesis ya amino acid am'mbali monga valine, leucine ndi isoleucine, kotero kuti kugawanika kwa maselo kumalepheretsa, kukula kwabwino kwa namsongole kumawonongeka, ndipo namsongole amafa.

Florasulam imakhala ndi machitidwe adongosolo, omwe amatha kuyamwa ndi masamba ndi mizu ya mbewu, kufalikira ku chomera chonse cha udzu, ndikuwunjikana mu meristem kuchititsa kufa kwa mbewu.Chifukwa chake, namsongole amaphedwa kwathunthu ndipo sipadzakhalanso kubwereza.

Kugwiritsa ntchito

Florasulam imagwiritsidwa ntchito makamaka pochiritsa tsinde ndi masamba m'minda yatirigu kuti athetse namsongole wamasamba otakata, kuphatikiza Artemisia somnifera, chikwama cha abusa, kugwirira nyama zakutchire, tsoka la nkhumba, nkhuku, chisa cha ng'ombe, chisa chachikulu, chakra cha mpunga, Zinziri zachikasu, Maijiagong. ndi namsongole zina zovuta kuzilamulira, ndipo zimakhala ndi zotsatira zabwino kwambiri zolepheretsa Ze Lacquer (Euphorbiaceae) zovuta kuzilamulira m'minda ya tirigu.Itha kugwiritsidwanso ntchito pa balere, chimanga, soya, thonje, mpendadzuwa, mbatata, pome zipatso, anyezi ndi udzu, msipu, ndi zina zotero. Nthawi yogwiritsira ntchito ndi yotakata, ndipo ingagwiritsidwe ntchito nyengo yachisanu isanayambe mpaka kumayambiriro kwa masika.

Outlook

Florasulam ili ndi maubwino ogwiritsira ntchito ndipo ndi mankhwala opha tizilombo m'minda ya tirigu.Komabe, kuipa kwa Florasulam ndikuti liwiro la udzu wakufa ndi wocheperako ndipo malo ochitirapo kanthu ndi amodzi.Chifukwa chake, ndikofunikira kugwiritsa ntchito mokwanira kutalika kwake ndikupewa kufupika kwake kuti muwonjezere moyo wamsika.